Felix yictobief eouleatj



:F.'V.ROULEAU. MAGNETIC ORB SEPARATOVR.

(No Model'.)

No. Z96,068..,

Patented Aprfl, 1884 N. PETERS. Fhoin-Lilhagmphu, Washingtm, n. c.

To aZZ whom it may concern:

surface to attract and retain the magnetic ma- Figure 1 represents in elevation my improved round form, in order to adapt them to turnin I 2, consisting of a series of small plates, 9, ap

' tained. Around each of the metal ends I), on the square portion thereof, I secure a metal against the two sides, as shown, or by other cured by bolts or rivets, as shown. The two UNITED STATES PATENT OFFICE.

FELIX VICTORIEN BOULEAU, OF ISLE VERTE, QUEBEC, CANADA.

MAGN ETIC ORE SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 296,068, dated April 1, 1884.

Application filed October 16, 1883. No model.)

Be it known that I, FELIX V. ROULEAU, of Isle Verte, in the Province of Quebec and Dominion of Canada, have invented certain Improvements in Magnetic Ore Separators, of which the following is a specification.

My invention has reference to that class of machines employed for removing ferruginous or magnetic sands and ores from non-magnetic substances, which contain as the active element a revolving body having a magnetized terial.

The invention consists in certain details of construction connected with the cylinder and magnets, as hereinafter described and claimed.

Referring to the accompanying drawings.

cylinder, one end being represented in sectionon the line as w of Fig. 2." Fig. 2 represents an end elevation of the cylinder. Fig. 3 represents a longitudinal central section through one of the electro-magnets and the supporting-bar upon which it ismounted.

In proceeding to construct my separator, I first provide a central wooden axle, a, and at tach to the ends thereof, in any manner which will insure the proper rigidity, two metallic extensions or end pieces, 1;, which are preferably made of a square form in cross-section, except at their ends, where they are given a the bearings or boxes by which they are susplate, d, preferably of square or other angular form, sustaining and confining the same in place by means of collars or plates 6, applied appropriate means, the only requirement be- Iplace a circular wooden head, f, which may be made in one piece, or composed of four segments united to the central plate, d. The most convenient means of connection between these parts is that represented in Figs. 1 and plied to the opposite faces of the parts andse-' To prevent the danger of the bars developed, it is preferred to encircle them at their ends by means of external hoops or bands, 7?, as shown in Fig. 1. For the purpose of sustaining the bars midway of their length, Iapply to the middle of the axle a central wooden disk, k, or a series of spokes sustained at the center by means of washers or collars Z, applied around the shaft against their side faces. On each of the longitudinal bars h, I mount a series of electro-magnets, B. Each of these magnets. consists, as represented most clearly in Fig. 3, of a central core of soft iron, m, terminating at its polar extremity in a thin rectangular plate, 02, and encircled by means of a coil or helix of insulated wire, 0. At the lower or inner end of the helix the core is encircled by a washer of non-conducting material, 10.

The inner end of the core is extended through.

i g, by means of which the entire magnet is held firmly in place upon the bar. In practice I find that the best results are attained when the polar extremity n of the magnet is made about one and three-eighths inch square, and of about one-sixteenth of an inch in thickness. It is also found advisable to make the cylinder of a diameter of about two feet, and to arrange the magnets in such manner that their polar extremities will be separated from each other on all sides to the distance of about oneof electricity, from which a strong current 100 will thus be transmitted through the ends of the axle to the entire series of magnets. I

have found it best in practice to place about twenty-four bobbins on each bar, and to arrange about fifty bars upon each cylinder, each cylinder thus constructed presenting at its periphery twelve hundred independent rectangular surfaces to attract the magnetic material.

It will be observed that when constructed as described and shown my cylinder presents a practically continuous attractive surface, the magnets being arranged in close proximity to each other, both longitudinally and circumferentially of the cylinder.

I am aware that machines have been constructed with magnets arranged thereon in longitudinal rows widely separated from each other, the magnets in each row being so arranged that the spaces between their edges were fully equal to the width of their faces. lVIy arrangement is advantageous, in that it subjects the material under, treatment to a practically constant action of the attractive for this purpose being well known in the art,

and my improvement having no reference thereto, it is deemed unnecessary to illustrate or describe the same in detail herein.

Having thus described my invention,what I claim issaid bars and electrically connected with each p other and with the extremities of the shaft, substantially as described and shown.

3. In a cylinder for a magnetic separator, the combination of the shaft consisting of a wooden body and angular metal extremities, the angular metal plates (1, the circularwooden heads f, attached thereto, the longitudinal wooden bars h, and the series of magnets mounted upon said bars and electrically connected with each other and with the extremities of the shaft, as described and shown.

4. In combination with the cylinder having the longitudinal woodenbars h, the electromagnets having their cores n extended inward through said bars and secured by nuts upon the inner ends.

5. In a cylinder for a magnetic separator, the longitudinal wooden bars h, in combination with the helix 0 and the core m, having its outer end provided with the polar enlargement n, and having its inner end passed directly through the supporting-bar and secured by a nut at the inner end,

FELIX VICTORIEN ROULEAU.

Witnesses:

L. S. N. GAUVREAU, MARQELLIN PETTIGREW. 

